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An assessment of skin temperature gradients in a tropical primate using infrared thermography and subcutaneous implants.

dc.contributor.author Glander, Kenneth Earl
dc.contributor.author Scheidel, C
dc.contributor.author Thompson, CL
dc.contributor.author Vinyard, CJ
dc.contributor.author Williams, SH
dc.coverage.spatial England
dc.date.accessioned 2018-03-01T15:39:22Z
dc.date.available 2018-03-01T15:39:22Z
dc.date.issued 2017-01
dc.identifier https://www.ncbi.nlm.nih.gov/pubmed/28010815
dc.identifier S0306-4565(16)30218-2
dc.identifier.issn 0306-4565
dc.identifier.uri http://hdl.handle.net/10161/16140
dc.description.abstract Infrared thermography has become a useful tool to assess surface temperatures of animals for thermoregulatory research. However, surface temperatures are an endpoint along the body's core-shell temperature gradient. Skin and fur are the peripheral tissues most exposed to ambient thermal conditions and are known to serve as thermosensors that initiate thermoregulatory responses. Yet relatively little is known about how surface temperatures of wild mammals measured by infrared thermography relate to subcutaneous temperatures. Moreover, this relationship may differ with the degree that fur covers the body. To assess the relationship between temperatures and temperature gradients in peripheral tissues between furred and bare areas, we collected data from wild mantled howling monkeys (Alouatta palliata) in Costa Rica. We used infrared thermography to measure surface temperatures of the furred dorsum and bare facial areas of the body, recorded concurrent subcutaneous temperatures in the dorsum, and measured ambient thermal conditions via a weather station. Temperature gradients through cutaneous tissues (subcutaneous-surface temperature) and surface temperature gradients (surface-ambient temperature) were calculated. Our results indicate that there are differences in temperatures and temperature gradients in furred versus bare areas of mantled howlers. Under natural thermal conditions experienced by wild animals, the bare facial areas were warmer than temperatures in the furred dorsum, and cutaneous temperature gradients in the face were more variable than the dorsum, consistent with these bare areas acting as thermal windows. Cutaneous temperature gradients in the dorsum were more closely linked to subcutaneous temperatures, while facial temperature gradients were more heavily influenced by ambient conditions. These findings indicate that despite the insulative properties of fur, for mantled howling monkeys surface temperatures of furred areas still demonstrate a relationship with subcutaneous temperatures. Given that most mammals possess dense fur, this provides insight for using infrared imaging in thermoregulatory studies of wild animals lacking bare skin.
dc.language eng
dc.relation.ispartof J Therm Biol
dc.relation.isversionof 10.1016/j.jtherbio.2016.11.005
dc.subject Core-shell model
dc.subject Heat loss
dc.subject Howling monkey
dc.subject Subcutaneous temperature
dc.subject Thermal windows
dc.subject Thermoregulation
dc.subject Acclimatization
dc.subject Alouatta
dc.subject Animals
dc.subject Infrared Rays
dc.subject Skin Temperature
dc.subject Thermography
dc.subject Thermometers
dc.subject Tropical Climate
dc.title An assessment of skin temperature gradients in a tropical primate using infrared thermography and subcutaneous implants.
dc.type Journal article
pubs.author-url https://www.ncbi.nlm.nih.gov/pubmed/28010815
pubs.begin-page 49
pubs.end-page 57
pubs.organisational-group Duke
pubs.organisational-group Evolutionary Anthropology
pubs.organisational-group Trinity College of Arts & Sciences
pubs.publication-status Published
pubs.volume 63


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